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Finding the Fourth Proportional to 168,081.63, 231,952.69 and 91,600.75

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Solution

The fourth proportional to 168,081.63, 231,952.69 and 91,600.75 is: 126,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,081.63 : 231,952.69 = 91,600.75 : x
  2. Step 2: Convert to fraction form
    168,081.63/231,952.69 = 91,600.75/x
  3. Step 3: Cross multiply
    168,081.63x = 231,952.69 × 91,600.75
  4. Step 4: Simplify right side
    168,081.63x = 21,247,038,750.75
  5. Step 5: Solve for x
    x = 21,247,038,750.75/168,081.63
  6. Step 6: Final answer
    x = 126,409.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.